Mechanical motor.



G. W. BUNTING.

MECHANICAL MOTOR.

APPLICATION FILED DBO. 7, 1910.

1,030,566, Patented June 25,1912.

COLUMBIA PLANOORAPH o., WASHINGTON. B4 c.

GEORGE W. BUNTING, OF OCEAN CITY, MARYLAND.

MECHANICAL MOTOR.

Specification of Letters Patent.

Patented June 25, 1912.

Application filed December '7, 1910. Serial No. 596,118.

To all whom it may concern:

Be it knownthat I, GEORGE W. BUNTING, a citizen of the United States,residing at Ocean City, in the county of Worcester and State ofMaryland, have invented certain new and useful Improvements inMechanical Motors, of which the following is a specifi cation.

This invention relates to mechanical motors, and is primarily designedto provide a mechanism which may be operated by fluid power forimparting reciprocating movement to the power or driving parts.

Vl ith the above and other objects in view this invention consists inthe construction, combination and arrangement of the parts all ashereinafter more fully described.

Figure 1 is a view disclosing the present invention and illustrating howthe different parts are connected up; Fig. 2 is a modification which maybe used to serve the purpose of the weight.

Referring more particularly to the drawings, 1 designates an airreservoir having communication with any suitable air supply by the pipe2 or with an auxiliary air compressor 3, the latter being operatedpreferably by hand for producing the required amount of pressure tostart the motor. This tank or reservoir 1 may have a pressure gage 4.Leading from the tank 1 is a pipe 6 having a communication with theliquid reservoir 7 and also an extension pipe 8 by which communicationis had with the cylinder 9 for the purposes hereinafter more fullydescribed. On the pipe 6 between the air reservoir and the liquidreservoir is a valve 10 having a pinion by which the valve may beoperated by the rack member 11 to be hereinafter described. Besides thecommunication of the liquid reservoir with the cylinder through the pipe8 it has a connecting pipe 12 secured to the bottoms of said reservoirand cylinder. On the pipe 8 is a valve 13 for shutting off communicationbetween the liquid reservoir and the cylinder, and on the upper portionof the cylinder 1 is a valve 14; communicating with the atmosphere, saidvalves being constructed and provided with pinions similar to the valve10. These three valves are operated simultaneously by the rack member11, the latter being slidably mounted in any desired manner. A plungeror piston 15 is located within the cylinder 9, the former having apiston rod 16 carried thereon, the opposite extremity of said rod beingsecured to a weight 17 or a coiled spring of the desired strength. Thisspring 17 is rigidly secured to some stationary object. The rod 10 maybe guided in any usual manner as for instance by the cross member 18, asillustrated in the drawings. Rigidly secured to the rod 16 is anoperating member 19, said member being provided with a rack portion foroperating the gear 20. This operating member is provided at eachterminal with slots 30. Mount ed within the slotted portions at eachterminal of said slots are friction rollers 21 and 21. A check valve 31may be provided in the pipe 2 adjacent to the air supplying means. Avalve 32 is provided in the pipe 2 also cutting off communication withthe air reservoir 1. A lever 29 is provided for operating the valve,said lever extending through the slot provided in the lower terminal ofthe operating member 19. A similar lever is provided to operate thevalve 14:, said lever protruding through the slot provided in the upperterminal of said operating member. The air passes through pipe 6, thevalve 10 being open and the valve 13 being closed, into the liquidreservoir 7, said reservoir being partly filled with liquid such as maybe desired. When the compressed air acts upon the liquid it forces saidliquid through the pipe 12 into the cylinder 9 forcing the piston 15upwardly and raising the rod 16 and operating member 19 against thetension of the spring 17. In this operation the valve 14 is openpermitting the air in the cylinder above the piston to escape. As thepiston ascends the operating member 19 strikes against the levers 29 and28 shutting off the valves 10 and 1 1 and opening the valves 13 and 32.said valves 13, 14 and 10 being operated simultaneously by the rackmember 11 as before stated. lVit-h the air pressure cut off from theliquid reservoir 7 the tension to which the spring 17 is put to,

operates upon the piston 15 by drawing the.

latter downwardly and forcing the liquid back into the reservoir 7, theair used and left in the liquid reservoir to escape through the pipe 8and the valve 1 1 of the cylinder 9.

As the rod 16 and the operating member 19" descend, the gear 20 which isin mesh with the rack portion of said operating member is revolved. Justbefore completing the downward stroke the friction rollers mounted onthe operating member come in contact with the levers 29 and 28 operatingthe same to close the valves 13 and 32, and opening the valves 10 and14:.

Instead of weight or the spring 17 being used in the construction anyother structure may be provided. The gear 20 may be con nected by anysuitable means, such as a belt 23, for actuating certain mechanisms suchas a saw mill. Since the fluid from the reservoir 1 is withdrawnintermittently, the Valve 32 permits of the storing of the fluid in thesame manner, and thereby causes the pressure to remain approximately thesame.

Having thus fully described my invention, what is claimed as new is:

In a motor of the class described, an air reservoir, a liquid reservoirconnected to said air reservoir, a cylinder having double communicationwith said liquid reservoir a piston carrying a piston rod slidablymounted in said cylinder, an operating member rigidly secured to saidpiston rod, said operating member being provided with slots, valvesinterposed between said cylinder and said liquid reservoir, and thelatter and said air reservoir, means for opening and cutting offcommunication of the inside of said cylinder with the atmosphere, amember secured to said last'mentioned means and located in said slottedportion of the operating member adapted to be operated by the latter, agear adapted to be operated by said operating member, and means carriedby the piston rod for drawing the piston downwardly, as herein setforth.

In testimony whereof I aflix my signature in presence of two witnesses.

GEORGE W. BUNTING. lVitnesses:

HENRY E. DAVIS, Jr, LEMUEL WYATT.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. Q.

